Context
The first round of the second half is really cool.
Sen start with 0-1-4 with johnqt switching between mid and b main and other 4 on a. G2 try to take control but they are denied by util. Trent and net are holding closing doors.
Pressure and Map Control :
G2 try to apply pressure take a main but they don't succeed and because of that mid is completely open and creates pressure and 1leaf has to keep checking mid that leaves 2 on site and Sen quickly take a main control because of losing a main net goes for a push mid and gets punished.
Its crazy that if G2 got a control then the pressure would be on sentinels as they would have to work mid but because G2 messed up a main they besically grief their entire round that's why pressure and make control is so important